Grain door



Feb. 2 2, 19.27.` 1,618,758

C. A. JOHNSON` GRAIN DOOR Filed Juli s, 1925 Patented F eb, 22, 1927.

UNITED STATES PTFN? QFFCE.

CHARLES A. JOHNSON, OF SUPERIOR, WISCNSN.

GRAN DOOR.

Application filed July 3,

This invention relates to grain doors particularly adapt-ed for railway grain cars and the object is to f urther improve the structure described in my United States Patent No. 1,539,493. of May 26, 1925, by making several parts simpler and yet more eiiicient.

In the accompanying drawing:

Fig. 1 is an interior side elevation of a grain Car equipped with my improved grain 1o door.

Fig. 2 is a vertical section on the line 2 2 in Fig. 1. Y

Fig. 3 is a section on the line 3-3 in Fig. 1.

Fig. 4 is an outside elevation of the two lower sections of the new grain door.

Fig. 5 is the upper portion of Fig. 2 with the car roof extended and the new door swung up under and suspended from the roof.

Fig. 6 is an enlarged section on the line 6 6 in Fig. 1 showing more clearly one of the catches 27.

Referring to the drawing by reference l numerals, 10 designates the roof, 11 the floor and 12 one of the side walls of a grain car.

Said wall has a door opening 13 with adjacent door posts 14 and lintel 15. rIhe door opening may have any suitable form of slid able outside door (not shown) while the inner door used in loading, hauling andun- 'loading grain. in the present instance is constructed as follows:

On theinner side of the lintel or timber 15 is suitably secured as at 16 a horizontally disposed channel 17 having its lower liange 18 turned up, its top flange 19 'extending horizontally and inwardly and one end closed by a bent portion 2O (see Fig. 1) which latter may however be replaced by any suitable closing means. Similar but removable closing means may also be used at the other end of th-e channel. In said channel rest and ride the hooks 21 of two hangers 22J each of said hooks and hangers being connected by a hinge joint 23 enabling each hanger to be swung up to approXimately horizontal position as in Fig. 5, said hangers 22 each having two apertures 24 and 25.

The door is preferably made of sheet metal and comprises three sections A, B and C, of which the latter is fiat while the other two sections have their vertical edges turned toward the outside of the car. The main section A has its upper and lower corners 1925. semaine. 41,423.

provided each with a loop or guide 26 at the upper corners and 26 at the lower corners each pair slidable on one of the hangers 22. The hanger guides 26 are provided 6o each with a catch member 27 adapted to engage alternately in either one of the apertures 24, 25 and thus hold section A either raised or lowered. The catches have springs 28 pushing them forward and heads 29 as 65 finger holds for retracting them (see Fig. 6).

At the top edge. of section A the section B is secured by hinges 30 and is provided also with hooks 31 arranged to engage in 70 eyelets 32 fixed on the adjacent door frame.

' The section C is slidable between vert-ical edge flanges A2 of the main section A. The latter' section has its bottom edge turned outward and upward forming a channel 33 75 and a ledge 34 (see Fig. 2). The bottom section C has its upper edge formed as an inwardly and downwardly directed hook 35 which rests in the channel 33 when the Section C is lowered down to the car ioor 11. But when the section C is to be held in raised position it is lifted with its lower edge into the channel 33 as indicated by dotted lines C in Figs. 2 and 4 and is held in that position by goose neck latches 36 S5 pivoted at 37 to section A (see Fig. 4). 33 are hand holds on section C for handling it, and 39 is a cleat to be engaged by a crow bar or similar tool in starting to raise section C when'a load of grain is to be un- 9o loaded.

In further explanation of the operation, when the car is to be loaded the door sections are set as shown in Fig. 1 and the grain is poured in through the opening 13 and the 95 outer door (not shown) is closed. Section B may also be left folded down until the grain in the car reaches nearly up to it be Afore it is closed.

VIn unloading the car theV door section C is forced upward so the grain can run out easily and what will not run out is shoveled out or otherwise removed by any suitable means preferably after section B has been folded downas in dotted line in Fig. 2 and 105 raised together with section A. Then both sections A and B with section C within the latter are slid upwardly on the hangers 22 until the catches 27 engage apertures 24 whereupon the sections and hangers are slid on the channel 17 away from the door opening, or may be swung on the hinges 23 to about horizontal position and engaged by elevises or hails 40 suspended from the root of the car as shown in Fig. 5. In the latter position the grain door may he carried in idle position until needed again.

That I claim is:

A grain door comprising two pairallel spaced hanger liars hinged at their upper ends above the. door opening so as to be foldalile inward under the root oit' the ear when so desired, three door seetions slidahle on the liars and the two upper sections hinged together, and means for holding the sections at various elevations on said hanger bars; the middle one of the sections having its lower edge formed with a channel, and the lowest section having its upper edge formed as a. broad hook occupying the channel when the section is closed down, the lower edge ol said lowest section being plain and arranged to rest in the Channel when the lowest seetion is raised to open position.

lin testimony1 whereof I all-ix my signature.

CHARLES A. JOHNSON. 

